It throws JS error "Uncaught Error: Syntax error, unrecognized expression: [data-ckeditor-buttons~=Find RTL]" if we use "Find RTL" button

Problem/Motivation

It throws JS error if we add "Find RTL" in active toolbar in text format configuration settings page:

Uncaught Error: Syntax error, unrecognized expression: [data-ckeditor-buttons~=Find RTL]

I understand it happens because there is a space character in "Find RTL".

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes